Air conditioner



FIG. 1 is a front bottom perspective view of an air conditioner showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front bottom perspective view thereof in a state of the wind direction plate opened.

The rear of the design is flat and unornamented. 

The ornamental design for an air conditioner, as shown and described. 